Immediate purchase is welcome! This is a gateball scorekeeper from Sunshine Ace Corporation. It has been stored for a long time. It's probably been 30 years. When you turn on the power, it beeps, and when you press the start button, the countdown begins. I tried pressing all the buttons, and they responded. It seems to have been hardly used, as the protective seal is still on. The case is in poor condition. There is also an instruction manual, but it has folds and stains. Please note that the battery may be depleted. Please purchase only if you understand that this is a used item that has been stored for a long time. It will be shipped in simple packaging.